<template>
  <div>
    <h3>用户列表组件</h3>
    <el-breadcrumb>
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input v-model="queryInfo.query" placeholder="请输入内容" @keyup.enter.native="searchUesr">
            <el-button slot="append" icon="el-icon-search" @click="searchUesr"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addUesr">添加用户</el-button>
        </el-col>
      </el-row>
    </el-card>
    <el-dialog
      title="添加用户"
      :visible.sync="addUserdialogVisible"
      width="600px"
      @close="addDialogClosed"
    >
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="电话" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="addUserdialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <el-table :data="userList" border stripe>
      <el-table-column label="序号" align="center" type="index" :index="indexMethod" width="80px"></el-table-column>
      <el-table-column label="姓名" align="center" prop="username" width="140px"></el-table-column>
      <el-table-column label="邮箱" align="center" prop="email"></el-table-column>
      <el-table-column label="电话" align="center" prop="mobile"></el-table-column>
      <el-table-column label="角色" align="center" prop="role_name"></el-table-column>
      <el-table-column label="状态" align="center">
        <template slot-scope="scope">
          <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row.id)"></el-switch>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" width="260px">
        <template slot-scope="scope">
          <!-- 修改 -->
          <el-button
            type="primary"
            icon="el-icon-edit"
            size="mini"
            @click="editUserInfo(scope.row.id)"
          ></el-button>
          <!-- 删除 -->
          <el-button
            type="danger"
            icon="el-icon-delete"
            size="mini"
            @click="deleteUser(scope.row.id)"
          ></el-button>
          <!-- 分配角色 -->
          <el-tooltip class="item" effect="dark" content="分配角色" placement="top" :enterable="false">
            <el-button
              type="warning"
              icon="el-icon-setting"
              size="mini"
              @click="assignRole(scope.row)"
            ></el-button>
          </el-tooltip>
        </template>
      </el-table-column>
    </el-table>
    <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[1, 2, 5, 10]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total"
    ></el-pagination>
    <el-dialog
      title="编辑用户信息"
      :visible.sync="editDialogVisible"
      width="600px"
      @close="editDialogClosed"
    >
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="电话" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserForm">确 定</el-button>
      </span>
    </el-dialog>
    <el-dialog
      title="分配角色"
      :visible.sync="assignRoleDialogVisible"
      width="30%"
      :before-close="handleClose"
      @close="setRoleDialogClosed"
    >
      姓名：{{role.username}}
      当前角色：{{role.role_name}}
      <el-select v-model="selectedRoleId" placeholder="请选择角色">
        <!-- :label 显示文本，:value 选中值 -->
        <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id"></el-option>
      </el-select>
      <span slot="footer" class="dialog-footer">
        <el-button @click="assignRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
<script>
export default {
  name: 'Users',
  data() {
    var checkEmail = (rule, value, cb) => {
      const regEmail = /^\w+@\w+(\.\w+)+$/
      if (regEmail.test(value)) {
        return cb()
      }
      // 返回一个错误提示
      cb(new Error('请输入合法的邮箱'))
    }
    // 验证手机号码的规则
    var checkMobile = (rule, value, cb) => {
      const regMobile = /^1[34578]\d{9}$/
      if (regMobile.test(value)) {
        return cb()
      }
      // 返回一个错误提示
      cb(new Error('请输入合法的手机号码'))
    }
    return {
      // 获取查询用户信息的参数
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },
      // 保存请求回来的用户列表数据
      userList: [],
      total: 0,
      addUserdialogVisible: false,
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 验证规则
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名称', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '用户名在3~10个字符之间',
            trigger: 'blur'
          }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '用户名在6~15个字符之间',
            trigger: 'blur'
          }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          {
            validator: checkEmail,
            message: '邮箱格式不正确，请重新输入',
            trigger: 'blur'
          }
        ],
        mobile: [
          { required: true, message: '请输入手机号码', trigger: 'blur' },
          {
            validator: checkMobile,
            message: '手机号码不正确，请重新输入',
            trigger: 'blur'
          }
        ]
      },
      editForm: {
        username: '',
        email: '',
        mobile: ''
      },
      editDialogVisible: false,
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          {
            validator: checkEmail,
            message: '邮箱格式不正确，请重新输入',
            trigger: 'blur'
          }
        ],
        mobile: [
          { required: true, message: '请输入手机号码', trigger: 'blur' },
          {
            validator: checkMobile,
            message: '手机号码不正确，请重新输入',
            trigger: 'blur'
          }
        ]
      },
      // 分配角色
      assignRoleDialogVisible: false,
      role: {},
      // 保存所有的角色信息
      rolesList: [],
      // 保存用户选中的角色id
      selectedRoleId: ''
    }
  },
  created() {
    // 获取用户列表
    this.getUserList()
    // 获取角色列表
    // this.getRolesList()
  },
  methods: {
    // 获取角色列表
    getRolesList() {},
    // 获取用户列表
    async getUserList() {
      // 发送请求获取用户列表数据
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      // 如果返回状态为异常状态则报错并返回
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败')
      }
      // 如果返回状态正常，将请求的数据保存在data中
      this.userList = res.data.users
      this.total = res.data.total
    },
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    handleCurrentChange(pageNum) {
      this.queryInfo.pagenum = pageNum
      this.getUserList()
    },
    // switch 中的change事件
    async userStateChanged(row) {
      const { data: res } = await this.$http.put(
        `users/${row.id}/state/${row.mg_state}`
      )
      if (res.meta.status !== 200) {
        row.mg_state = !row.mg_state
        this.$message({
          message: '修改失败',
          type: 'error'
        })
      }
      this.$message({
        message: res.meta.msg,
        type: 'success'
      })
    },
    // 条件搜索
    searchUesr() {
      this.getUserList()
    },
    // 表格前面的数字方法
    indexMethod(index) {
      return index
    },
    // 添加用户
    addUesr() {
      this.addUserdialogVisible = true
    },
    // 关闭adddialog
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    // 添加用户
    addUser() {
      console.log('ss')
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) return this.$message.error('请填写完整用户信息')
        // 发送请求完成添加用户的操作
        const { data: res } = await this.$http.post('users', this.addForm)
        // 判断如果添加失败，就做提示
        if (res.meta.status !== 201) return this.$message.error('添加用户失败')
        // 添加成功的提示
        this.$message.success('添加用户成功')
        // 关闭对话框
        this.addUserdialogVisible = false
        // 重新请求最新的数据
        this.getUserList()
      })
    },
    // 点击编辑按钮，查询用户信息并打开编辑弹框
    async editUserInfo(id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户信息失败')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    // 提交编辑用户按钮
    editUserForm() {
      // 用户点击修改表单中的确定按钮之后，验证表单数据
      this.$refs.editFormRef.validate(async (valid) => {
        if (!valid) return this.$message.error('请填写完整用户信息')
        // 发送请求完成修改用户的操作
        const { data: res } = await this.$http.put(
          'users/' + this.editForm.id,
          this.editForm
        )
        // 判断如果修改失败，就做提示
        if (res.meta.status !== 200) return this.$message.error('修改用户失败')
        // 修改成功的提示
        this.$message.success('修改用户成功')
        // 关闭对话框
        this.editDialogVisible = false
        // 重新请求最新的数据
        this.getUserList()
      })
    },
    // 删除角色
    async deleteUser(id) {
      // 弹出确定取消框，是否删除用户
      const confirmResult = await this.$confirm(
        '请问是否要永久删除该用户',
        '删除提示',
        {
          confirmButtonText: '确认删除',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch((err) => err)
      // 如果用户点击确认，则confirmResult 为'confirm'
      // 如果用户点击取消, 则confirmResult获取的就是catch的错误消息'cancel'
      if (confirmResult !== 'confirm') {
        return this.$message.info('已经取消删除')
      }
      // 发送请求根据id完成删除操作
      const { data: res } = await this.$http.delete('users/' + id)
      // 判断如果删除失败，就做提示
      if (res.meta.status !== 200) return this.$message.error('删除用户失败')
      // 修改成功的提示
      this.$message.success('删除用户成功')
      // 重新请求最新的数据
      this.queryInfo.pagenum = 1
      this.getUserList()
    },
    // 分配角色
    async assignRole(row) {
      this.role = row
      const { data: res } = await this.$http.get('roles')
      // 判断如果删除失败，就做提示
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败')
      }

      this.rolesList = res.data
      // 展示分配角色对话框
      this.assignRoleDialogVisible = true
    },
    // 保存信息
    async saveRoleInfo() {
      //  当用户点击确定按钮之后
      // 判断用户是否选择了需要分配的角色
      if (!this.selectedRoleId) {
        return this.$message.error('请选择需要分配的角色')
      }
      // 发送请求完成分配角色的操作
      const {
        data: res
      } = await this.$http.put(`users/${this.role.id}/role`, {
        rid: this.selectedRoleId
      })

      // 判断如果删除失败，就做提示
      if (res.meta.status !== 200) return this.$message.error('分配角色失败')

      this.$message.success('分配角色成功')
      this.getUserList()
      // 关闭对话框
      this.assignRoleDialogVisible = false
    },
    setRoleDialogClosed() {
      // 当关闭对话框的时候，重置下拉框中的内容
      this.selectedRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>
<style lang="less" scoped>
.el-card {
  margin-top: 15px;
}
.el-card__body {
  padding: 10px;
}
.table-index {
  width: 60px;
}
.el-table {
  margin-top: 20px;
  margin-bottom: 20px;
  padding: 0;
}
.el-pagination {
  float: right;
}
</style>
<style >
.el-table th.gutter {
  display: table-cell !important;
}
</style>
